<div class="navbar navbar-default">
  <div class="container">
    <div class="navbar-header">
      <a class="navbar-brand" href="#/start">开饭啦</a>
      <a class="navbar-toggle" data-toggle="collapse">
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </a>
    </div>
  </div>
</div>